الكاتب: Multiple References

The objective of this study was to compare the effect of ceftiofur hydrochloride and estradiol Cypionate (ECP) administration for metritis prevention and reproductive performance in dairy cows affected with retained fetal membranes (RFMs). After partition, 97 dairy cows affected with RFM from a single dairy herd were randomly allocated to 1 of 3 treatment groups. Cows in group 1, (n = 31) were evaluated daily for 5 days with ceftiofur hydrochloride (2.2 mg / kg, 1 .I); COWS in group 2 (n = 33) were evaluated once with ECP (4 mg, i. M.); and cows in group 3 (n = 33) were not appreciated. The proportion of cows with metritis, uterine involution patterns and the calving - to - conception interval were compared between groups. The proportion of cows that developed metritis was significantly different (P <.05) in cows treated with ceftiofur hydrochloride (13%), compared with cows treated with ECP (42%) or cows that received no treatment (42%). Uterine involution patterns (ie, median time to complete retraction of the uterus and mean diameter measure of cervix and uterine horns) were not significantly different between groups. Cows treated with ECP were 0. 40 times as likely to conceive as Control cows (P = .05); median time to conception in cows treated with ECP (192 days) was longer, compared to control cows (124 days). We conclude that systemic administration of certioufur hydrochloride is beneficial for prevention of metritis, but its effect on reproductive performance was not significantly different to that of ECP or no treatment, In addition, administration of ECP "did not have beneficial effects on metritis prevention and reproductive performance (2002 Elsevier Science Inc. All rights reserved